Train-hose coupling.



PATENTED SEPT. 12, 1905.

I. I. CASKEY.

TRAIN HOSE COUPLING.

APPLIUATION FILED NOV. 25. 1004.

JUNK, .FI MMW amnmqo.

Isaav Z (as/he ISAAC l. (JASKEY, OF COLUMBUS, Ol'llO.

TRAIN-HOSE COUPLING- Specification of Letters Patent.

Patented Sept. 12, 1905.

Application filed November 25, 1904. Serial No. 284,312.

To a]! whom, it may concern:

Be it known that I, Isaac I. CASKEY, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Train-Hose Couplings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Herctofore considerable trouble has been occasioned by the jolting apart of the members of pipe-couplings ot' steam-heating pipes for railway-trains. Another source of trouble has been the loss of the gasket.

The object of the present invention is to overcome these ditficulties; and the invention consists in the improved construction hereinafter described and claimed, the invention not being limited to the precise details shown.

In the accompanying drawings, Figure 1 is a side view of one of the coupling members. Fig. 2 is a top plan view. Fig. 3 is a view on a smaller scale, showing two coupling members coupled. Fig. 4: is a side view of the gasket. Fig. 5 is a view of the inner end of the same. Fig. 6 is a sectional view showing the gasket in place in the coupling member. Fig. 7 is an end view, partially in section, of the connecting end of the coupling member, showing details of construction of the gasketseat.

The coupling members generally will be constructed alike, so that a description of one will sutfice for both. They will also be con structcd so as to be usable in connection with those already in use, so as to avoid the necessity of reequipping at once an entire railroad system or several railroad systems.

In the several views, 1 designates the body of the coupling member. This is perforated axially for the passage of steam. Projecting from one side of the connecting end of the member is a wing 2, having on its inner side a dovetailed or tapering lug 2, with both its opposite edges reentrant and of dovetail crosssection. On the opposite side of the body of the coupling member, between two projecting lugs thereof, is formed a groove 3, corresponding in size and shape to the lug 2; From the construction shown it will be observed that the lug 2 is engaged with a locking action at both sides by the sides of the groove 3. Hence the tendency of the coupling members to separate laterally, as heretofore, is resisted. Further, it will be noted that because the lug 2 is tapering and of dovetail crosssection and the groove 3 of corresponding cross-section and form the smaller end of the lug is to be inserted in the larger end of the groove to etlect the union of the members, and hence such union, as well as separation of the members, is more easily and promptly eflected than where uniting tongues and grooves each have parallel sides.

On the upper side of the body of the coupling member is a boss 4:, having at one side a pivoted or swinging latch 4;, made of spring metal bent into loop form at its free end and formed with a reduced shank, and at the other side a notch a to receive the shank of a corresponding latch T of another coupling member. The latches are to be turned into place after two members are coupled, as seen in Fig. 3. The advantage of such a latch is that it has elastic sides friction-ally engaging the sides of the notch a, and thus adapted to compensate for inequalities in tightness of conncction without diminishing the effectiveness of the union.

The seat for the gasket consists of an internal groove 5, made within the bore of the member, and longitudinal passages 5 from the end of the body leading to said groove. \Vithin the bore of the body and between its end and the groove 5 are pin-holes 6, with ec' centric grooves 6 leading from the passage 5 to the pin-holes 6. The gasket is designated '7. It is a thimble-like structure having a fitting-face at its outer end and lugs '7 to pass through the passages 5 and (when the gasket is turned) engage the groove 5. The gasket is furnished with a spring 8, having pins 8 formed at its ends. These pins project through holes in the sides of the gasket, and when the gasket is turned in its seat to seat it the pins 8 ride through the grooves 6 and spring into the holes 6. The gasket is thus locked in its seat, but can be removed at any time by withdrawing the pins 8.

\Vhat I claim, and desire to secure by Letters Patent, is

1. In a pipe or hose coupling, a coupling member comprising a body portion having at one side a projecting wing provided on its face with a tapering lug having both of its opposite edges reentrant and at the otherside two projections forming a groove corresponding in cross-section to the aforesaid tapering lug and adapted to receive and engage both edges IOO of said lug on a Wing of a corresponding coupling member, substantially as shown and described.

2. In a pipe 01: hose coupling, a coupling member comprising in combination a body portion having a boss, a swinging latch of spring metal bent to loop form expanded at its free end and having a reduced shank pivoted at one side of said boss, said boss having at its other side a notch to receive the shank of such a latch on another member.

3. In combination With a pipe or hose coupling member provided with an internal groove and longitudinal passages leading thereto and pin-holes, a gasket provided With lugs to enter said passages and engage said groove and a spring having pins to engage said pin-holes When the lugs of the gasket are engaged with the groove.

4. In combination With a pipe or hose coupling member provided With an internal groove and longitudinal passages leading thereto and pin-holes With eccentric passages leading from the aforesaid longitudinal passages to the pinholes, a gasket provided with a spring having pins to pass through the eccentric grooves to the pin-holes and engage the same to secure the gasket in place.

In testimony whereof I aflix my signature in presence of tWo Witnesses.

ISAAC I. CASKEY. I/Vitnesses:

OLIN J. Ross, Gno. M. FINoKEL. 

